ESR study of 13C-enriched carbonated calciumapatites precipitated from aqueous solutions.
作者： F. J. Callens , R. M. H. Verbeeck , D. E. Naessens , P. F. A. Matthys , E. R. Boesman
DOI: 10.1007/BF00310204
关键词:
摘要: The ESR spectrum of X-irradiated carbonated apatites precipitated from aqueous solutions was studied at carbonate contents ranging approximately 5.4 up to 12.4 wt%. 12C- as well 13C-enriched samples were prepared and examined with after drying until constant weight 25°C 400°C. In these apatites, two CO3 3- radicals detected, one which is derived B-type situated a phosphate lattice site. other most probably arises CO3 2- ions OH- sites. contradistinction the contribution, A-type contribution overall signal decreases in absolute terms increasing concentration. addition, line shape complete set principal g-values A1-signal found previous studles could be determined, corroborating assignment A1 surface O- ion.
springer.com
sci-hub.se 参考文章(9)
Karel Štulík, Antonín Vítek, Milan Horák, Interpretation and processing of vibrational spectra ,(1978)
M. Mengeot, R. H. Bartram, O. R. Gilliam, Paramagnetic holelike defect in irradiated calcium hydroxyapatite single crystals Physical Review B. ,vol. 11, pp. 4110- 4124 ,(1975) , 10.1103/PHYSREVB.11.4110
F. J. Callens, R. M. H. Verbeeck, P. F. A. Matthys, L. C. Martens, E. R. Boesman, F. C. M. Driessens, The ESR Spectrum Near G=2 of Carbonated Calciumapatites Synthesized at High Temperature Bulletin des Sociétés Chimiques Belges. ,vol. 95, pp. 589- 596 ,(2010) , 10.1002/BSCB.19860950801
F. J. Callens, R. M. H. Verbeeck, P. F. A. Matthys, L. C. Martens, E. R. Boesman, 13C‐Hyperfine Couplings of Carbonate Radicals in Carbonated Calciumapatites Synthesized at High Temperature Bulletin des Sociétés Chimiques Belges. ,vol. 96, pp. 165- 171 ,(2010) , 10.1002/BSCB.19870960301
F. J. Callens, R. M. H. Verbeeck, D. E. Naessens, P. F. A. Matthys, E. R. Boesman, Effect of carbonate content on the ESR spectrum near g = 2 of carbonated calciumapatites synthesized from aqueous media. Calcified Tissue International. ,vol. 44, pp. 114- 124 ,(1989) , 10.1007/BF02556470
F. J. Callens, R. M. H. Verbeeck, D. E. Naessens, P. F. A. Matthys, E. R. Boesman, The effect of carbonate content and drying temperature on the ESR-spectrum near g = 2 of carbonated calciumapatites synthesized from aqueous media. Calcified Tissue International. ,vol. 48, pp. 249- 259 ,(1991) , 10.1007/BF02556376
C. Rey, B. Collins, T. Goehl, I. R. Dickson, M. J. Glimcher, The carbonate environment in bone mineral: a resolution-enhanced Fourier Transform Infrared Spectroscopy Study. Calcified Tissue International. ,vol. 45, pp. 157- 164 ,(1989) , 10.1007/BF02556059
F. J. Callens, R. M. H. Verbeeck, P. F. A. Matthys, L. C. Martens, E. R. Boesman, The contribution of CO3(3-) and CO2- to the ESR spectrum near g = 2 of powdered human tooth enamel. Calcified Tissue International. ,vol. 41, pp. 124- 129 ,(1987) , 10.1007/BF02563791
Paul Meriaudeau, Jacques C. Vedrine, Youn�s Ben Taarit, Claude Naccache, Electron paramagnetic resonance studies of CO ? 2 radicals adsorbed on MgO. Identification and structure of the species using 13C and 17O labelling Journal of the Chemical Society, Faraday Transactions 2. ,vol. 71, pp. 736- 748 ,(1975) , 10.1039/F29757100736